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Your search keyword '"Shiel, R.J."' showing total 19 results
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19 results on '"Shiel, R.J."'

5. Microfaunal diversity in a biodiversity hotspot: new rotifers from Southwestern Australia

Author

Segers, H. and Shiel, R.J.

Subjects
Trichocerca wanarra, Lecane halsei, ISW, Australia, New species, Lecane noobijupi
Abstract

We present the descriptions of 3 new and apparently endemic species of rotifer (Rotifera: Monogononta: Lecanidae, Trichocercidae). Lecane halsei sp. nov. belongs to the L. ludwigii (Eckstein)-group, and is diagnosed by the absence of a posterior projection on the lorica. The taxonomy of the L. ludwigii-group is commented upon. Lecane noobijupi sp. nov. is a sister taxon of the common, cosmopolitan L. bulla (Gosse), whereas Trichocerca wanarra sp. nov. is close to T. insignis (Herrick), T. myersi (Hauer), and T. plaka (Myers), but the trophi are characteristic. The 3 new species illustrate the diversity of the freshwater microfauna in southwestern Australia, and the need for a thorough taxonomic approach to biodiversity inventories of cryptic microfaunal groups.

Published
2003

6. Subclass Copepoda

Author

Bradford-Grieve, J.M., Wells, J.B.J., Jones, J.B., Chapman, M., Green, J., Ho, J-S, Rocha, C.E.F., Shiel, R.J., Lewis, M., Bradford-Grieve, J.M., Wells, J.B.J., Jones, J.B., Chapman, M., Green, J., Ho, J-S, Rocha, C.E.F., Shiel, R.J., and Lewis, M.

Abstract

No abstract available

Published
2010

7. Phylum Arthropoda, subphylum Crustacea:shrimps, crabs, lobsters, barnacles, slaters, and kin

Author

Gordon , Dennis P., Webber, W.R., Fenwick, G.D., Bradford-Grieve, J.M., Eagar, S.H., Buckeridge, J.S., Poore, G.C.B., Dawson, E.W., Watling, L., Jones, J.B., Wells, J.B.J., Bruce, N., Ahyong, S.T., Larsen, K., Chapman, M.A., Olesen, Jørgen, Ho, J.-S., Green, J.H., Shiel, R.J., Rocha, C.E.F., Lörz, A.-N., Bird, G.J., Charleston, W.A., Gordon , Dennis P., Webber, W.R., Fenwick, G.D., Bradford-Grieve, J.M., Eagar, S.H., Buckeridge, J.S., Poore, G.C.B., Dawson, E.W., Watling, L., Jones, J.B., Wells, J.B.J., Bruce, N., Ahyong, S.T., Larsen, K., Chapman, M.A., Olesen, Jørgen, Ho, J.-S., Green, J.H., Shiel, R.J., Rocha, C.E.F., Lörz, A.-N., Bird, G.J., and Charleston, W.A.

Published
2010

13. Ecology versus taxonomy: is there a middle ground?

Author

Nielson, D.L., Shiel, R.J., and Smith, F.J.

Subjects
ANIMAL classification, ROTIFERA
Abstract

Investigates the level of taxonomic resolution required to determine the impact of disturbance of Rotifera. Effects of different taxonomic resolutions in assessing biodiversity; Role of taxonomists in identifying the common rotifers to generic level; Importance of species resolution in measuring biodiversity.

Published
1998

16. Freshwater zooplankton in the Hawkesbury-Nepean River: comparison of community structure with other rivers.

Author

Kobayashi, T., Shiel, R.J., Gibbs, P., and Dixon, P.I.

Subjects
FRESHWATER zooplankton, RIVERS
Abstract

Investigates the community structure of freshwater zooplankton at different sites in the Hawkesbury-Nepean River in Australia. Seasonal and horizontal variation in zooplankton community density; Associational patterns between the river environmental variables and zooplankton community density; Community structure of zooplankton.

Published
1998
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17. Preliminary remarks on the characteristics of the rotifer fauna of Australia (Notogaea)

Author

Koste, W. and Shiel, R.J.

Abstract

Unusually large forms of Asplanchna sieboldi, Brachionus plicatilis, B. calycijlorus, Filinia pejleri, Trichocerca similis and Keratella slacki were collected from waters of south-eastern Australia. These giant forms are figured, and brief location and ecological data are given. Although the rotifer fauna of the Murray riversystem contains pan-tropical and pan-subtropical species, there exists a greater degree of endemicity than previously considered.

Published
1980
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18. Rotifera from Western Australian wetlands with descriptions of two new species

Author

Koste, W., Shiel, R.J., Brock, M.A., Koste, W., Shiel, R.J., and Brock, M.A.

Abstract

The rotifer fauna of 100 fresh and saline wetlands of southwest Western Australia is documented. A systematic list of 83 recorded taxa is given, with eleven new records for the continent and two new species (Brachionus pinneenaus n. sp. and Lecane boorali n. sp.) described and figured. Species assemblages are distinct from those of eastern Australia, with predominant taxa halophilous or indicative of ephemeral waters. Evolutionary and biogeographical relationships of the Western Australian rotifers are considered.

Published
1983

19. The composition of aquatic communities in saline wetlands in Western Australia

Author

Brock, M.A., Shiel, R.J., Brock, M.A., and Shiel, R.J.

Abstract

Macrophytes, plankton samples, salinity and depth data were collected from wetlands in October 1981. Species diversity and distributions are recorded and relationships drawn between macrophytes and plankton occurrence. An examination of the data of Geddes et al. (1981) enables comparisons of species composition in a similar range of Western Australian lakes in 1978 at a different stage in the seasonal cycle. Comparison with the biota of salt lakes in Australia's eastern states and elsewhere lead to biogeographical speculations for the macrophytes and for some of the planktonic species.

Published
1983

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